Não informado. (2009). Main Science and Technology Indicators. Organization for Economic Co-operation and Development.
Chicago Style (17th ed.) CitationNão informado. Main Science and Technology Indicators. Paris: Organization for Economic Co-operation and Development, 2009.
MLA (8th ed.) CitationNão informado. Main Science and Technology Indicators. Organization for Economic Co-operation and Development, 2009.
Warning: These citations may not always be 100% accurate.